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Thermal (T- and TA-Line) T12-MSM
www.schurter.com/PG17_18_19
Circuit Breakers
Circuit Breaker for Equipment thermal with Metal Actuator
Description
- Thermal circuit breaker
- Metal switch non-illuminated and illuminated
- 1-pole
- Quick connect terminals 6.3 x 0.8 mm or screw terminals
Approvals
- Approval Reference Type: T12
- IEC Standard: IEC 60934
- UL Standard: UL 1077
- GB Standard: GB 17701
Applications
- Power supplies
- Uninterruptible power supply
- Power tools
- Household appliances
References
Component 1: circuit breakers T12-221; T12-222
Component 2: metal switch MSM LA 19 ; MSM LA 22
Component 3: Coupler
Weblinks
pdf-datasheet, html-datasheet, General Product Information, Approvals,
CE declaration of conformity, RoHS, CHINA-RoHS, REACH, e-Shop,
SCHURTER-Stock-Check, Distributor-Stock-Check, Detailed request for
product, Product News
Technical Data
Rated Voltage AC 240 V; 50/60 Hz
Rated Voltage DC 28 V
Rated current range AC 0.05 - 15/16 A
Conditional short circuit ca-
pacity
IEC: Inc, PC1, AC 240V: 1 kA
Dielectric Strength 50 Hz: > 1.5 kV
Impulse 1.2/50 μs: > 2.5 kV
Insulation resistance 500 VDC > 100 MΩ
Endurance typical 2 x Ir: 5000 switching cycles
␣ Reset type
AC : 2 x Ir , cos φ 0.6 :
DC : 2 x Ir , L/R = 2 - 3 ms :
50 switching cycles
␣ Manual ON/OFF type
AC : 2 x Ir , cos φ 0.6 :
DC : 2 x Ir , L/R = 2 - 3 ms :
5000 switching cycles
Overload IEC: min. 40 trips
@ 6 x Ir, cos φ 0.6
␣ UL / CSA: min. 50 trips
@ 1.5 x Ir, cos φ 0.75
Ambient temperature -5 °C to 60 °C
Vibration Resistance ± 0.75 mm @ 5 - 60 Hz
acc. to IEC 60068-2-6, test Fc
7 G @ 60 - 500 Hz
acc. to IEC 60068-2-6, test Fc
Shock Resistance 60 G / 18 ms
acc. to IEC 60068-2-27, test Ea
Tripping Type Thermal
Actuation type Manual ON/OFF
Shock Protection IK 07
Tightening Torque Stainless
Steel Nut
12 Nm for thread M19, 16 Nm for M22
Salt Spray Test (acc. to DIN
50021-SS)
24 h / 48 h / 96 h Residence Time
Supply Voltage 24 VDC Ring Illuminationwithout series
resistor Point Illumination
Weight ca. 45 g
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Thermal (T- and TA-Line)
T12-MSM www.schurter.com/PG17_18_19
Circuit Breakers
Dimension
T12 MSM 19
6.3
11.5
ø 22
ø 15.5 M19 x 0.75
17.8
max. 10
1.7
1.8
76.65
15.5
ø 24
31
3
21
0.8
1)
1) only among MSM PI / RI quick connect terminal 2.8x0.5 mm
T12 MSM 22
6.3
11.5
ø 25
ø 17.7 M22 x 1
17.8
max. 9
1.7
1.8
76.65
15.5
31
3
21
0.8
1)
1) only among MSM PI / RI quick connect terminal 2.8x0.5 mm
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Thermal (T- and TA-Line) T12-MSM
www.schurter.com/PG17_18_19
Circuit Breakers
T12 MSM 22 screw version
11.5
ø 25
ø 17.7 M22 x 1
17.8
max. 9
1.7
1.8
82.55
15.5
31
3
21
M4
1)
1) only among MSM PI / RI quick connect terminal 2.8x0.5 mm
MSM 19 LA ST / MSM 19 LA RI
Drilling diagram
MSM 19 LA LE / MSM 19 LA PI /
MSM 19 LA RI optional
Drilling diagram
MSM 22 LA ST / MSM 22 LA RI
Drilling diagram
MSM 22 LA LE / MSM 22 LA PI /
MSM 22 LA RI optional
Drilling diagram
Point Illumination
Operating Data Forward Current max. Forward Current at 10 mA Forward Current at 8 mA Forward Current max.
LED red 30 mA 1,9 VDC 3,0 VDC
LED green 30 mA 2,1 VDC 3,0 VDC
LED blue 20 mA 3,7 VDC 4,5 VDC
Attention: Switches are delivered without series resistor.
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Thermal (T- and TA-Line)
T12-MSM www.schurter.com/PG17_18_19
Circuit Breakers
Recommendation of series resistors for point illumination
Typical internal resistance
Rated Current [A] Internal Resistance [Ω]
0.05 225.000
0.50 3.300
1.00 0.880
2.00 0.267
3.00 0.128
4.00 0.073
5.00 0.040
6.00 0.031
7.00 0.018
8.00 0.018
9.00 0.010
10.00 0.0087
11.00 0.0087
12.00 0.0087
13.00 0.0087
14.00 0.0070
15.00 0.0070
16.00 0.0055
Effect of ambient temperature
The units are calibrated for an ambient temperature of +23°C. To determine the rated cur-
rent for a lower or higher ambient temperature, use a correction factor (typical value) from
the table below:
Ambient temperature [°C] Correction factor
-5 0.87
0 0.90
10 0.95
23 1.00
30 1.05
40 1.12
50 1.20
60 1.30
Example: Rated current = 5 A; Environmental temperature = 50 °C; --> Correction factor =
1.2; Resulting current = 6.0 A
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Thermal (T- and TA-Line) T12-MSM
www.schurter.com/PG17_18_19
Circuit Breakers
Time-Current-Curves
Time in Seconds
10'000
60
2´000
1´000
500
200
100
50
20
10
5
2
1
0, 5
0, 3
0, 2
0, 1
[ sec ][ min ]
10
5
1
30
20
1,05 10854321,32
< 7,0 A
> 7,0 A
Multiple of Rated Current In
Reference Temperature +23°
Lettering
The last three digits in the order number define the lettering:
000 No Lettering
001-074 Standard Lettering
101- Customized Lettering
Lettering options see on Datasheet MSM LA 22
All Variants
Circuit Breakers Momentary Action
Switch
Order Number
Type Rated cur-connection type Type Illumination
T12-221-10 10A Quick connect terminals 6.3 x 0.8 mm MSM LA 19 non-illuminated 4410.9001
T12-221-16 16A Quick connect terminals 6.3 x 0.8 mm MSM LA 19 non-illuminated 4410.9002
T12-221-10 10A Quick connect terminals 6.3 x 0.8 mm MSM LA 22 non-illuminated 4410.9003
T12-221-16 16A Quick connect terminals 6.3 x 0.8 mm MSM LA 22 non-illuminated 4410.9004
T12-221-10 10A Quick connect terminals 6.3 x 0.8 mm MSM LA 19 Point Illumination, blue 4410.9005
T12-221-16 16A Quick connect terminals 6.3 x 0.8 mm MSM LA 19 Point Illumination, blue 4410.9006
T12-221-10 10A Quick connect terminals 6.3 x 0.8 mm MSM LA 22 Point Illumination, blue 4410.9007
T12-221-16 16A Quick connect terminals 6.3 x 0.8 mm MSM LA 22 Point Illumination, blue 4410.9008
T12-221-10 10A Quick connect terminals 6.3 x 0.8 mm MSM LA 19 Ring Illumination, blue, 24 VDC 4410.9009
T12-221-16 16A Quick connect terminals 6.3 x 0.8 mm MSM LA 19 Ring Illumination, blue, 24 VDC 4410.9010
T12-221-10 10A Quick connect terminals 6.3 x 0.8 mm MSM LA 22 Ring Illumination, blue, 24 VDC 4410.9011
T12-221-16 16A Quick connect terminals 6.3 x 0.8 mm MSM LA 22 Ring Illumination, blue, 24 VDC 4410.9012
T12-222-10 10A Bolts and nuts MSM LA 22 non-illuminated 4410.9017
T12-222-16 16A Bolts and nuts MSM LA 22 non-illuminated 4410.9018
T12-221-15 15A Quick connect terminals 6.3 x 0.8 mm MSM LA 22 non-illuminated 4410.9019
T12-221-15 15A Quick connect terminals 6.3 x 0.8 mm MSM LA 22 Ring Illumination, blue, 24 VDC 4410.9021
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Thermal (T- and TA-Line)
T12-MSM www.schurter.com/PG17_18_19
Circuit Breakers
Circuit Breakers Momentary Action
Switch
Order Number
Type Rated cur-connection type Type Illumination
Coupler is included
Availability for all products can be searched real-time:http://www.schurter.com/en/Stock-Check/Stock-Check-SCHURTER
Packaging Unit 10 Pcs
- Actuating elements in ESD safe packaging
- Screw nuts and sealing rings in a bag (enclosd in the box)
- Circuit breaker in a bag (enclosed in the box)
The specifications, descriptions and illustrations indicated in this document are based on current
information. All content is subject to modifications and amendments. Information furnished is believed
to be accurate and reliable. However, users should independently evaluate the suitability and test each
product selected for their own applications.
13.11.2014
